This is exactly my point - mission creep - the ships were not built to escort CBGs or hunt subs - the purpose of the classes was to defeat asymmetrical threats.
Got to raise an eyebrow at the reliability problems they have had but then the RN had some power issues with the Type 45s - also there was a point where some of the units were not yet equipped with Harpoon - which according to some on the interwebs and the bring back the harrier brigade - means that the class is totally useless - forevermore.
I do wonder if the Littorals have been tarred with the same brush?
For me something like the
British River class OPVs - particularly the batch 2s would serve this sort of mission - although with a speed of 25 knots......?
The FFG Oliver Hazard Perry Class was built as part of the High Low Navy in order to be able to provide enough ASW escorts for North Atlantic Convoys with limited SAM and Helo capability in the face of Hundreds of Soviet Subs and Long Range Bombers during the height of the cold war.
Is that a requirement for the Littorials?